TV licence guy who came round warned me about it :S... they are debating whether to make you need a TV licence if you use a cable modem. e.g. Virgin Media, if you get Internet and not the TV package they still want to charge you for a TV Licence.... :S. Mostly because its a simple process to decrypt the signal to get TV .
Its not likely to come into effect anytime soon.. but not seen it anywhere so i thought i would mention it.